/usr/share/sdpa/mex/mexAggSDPcones.cpp is in sdpam 7.3.9+dfsg-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | /* -------------------------------------------------------------
This file is a component of SDPA
Copyright (C) 2004-2013 SDPA Project
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
------------------------------------------------------------- */
/*
mexAggSDPcones.cpp
[A1,c1] = mexAggSDPcones(A0,c0,K0s,Ks)
*/
#include <string>
#include <iostream>
#include "mex.h"
using namespace std;
/* gateway function */
void mexFunction( int nlhs, mxArray *plhs[],
int nrhs, const mxArray *prhs[] )
{
/* [A,c,Ks] = mexAggregateSDPcone(A0,c0,K0s,Ks) */
/* ************************************************** */
/* Check for proper number of input and output arguments */
if (nrhs != 4) {
mexErrMsgTxt("4 input arguments required.");
}
if(nlhs != 2){
mexErrMsgTxt("2 output arguments required");
}
/* ---> */
/* reading the sparse mex matrix A0 */
const mxArray* A0_ptr = prhs[0];
if (mxIsSparse(A0_ptr) == 0) {
mexErrMsgTxt("A0 must be a sparse matrix.");
}
// mwSize A0colSize = mxGetN(A0_ptr);
// std::cout << "A0colSize = " << A0colSize << std::endl;
mwSize A0rowSize = mxGetM(A0_ptr);
// std::cout << "A0rowSize = " << A0rowSize << std::endl;
mwIndex A0nnz = mxGetNzmax(A0_ptr);
// std::cout << "A0nnz = " << A0nnz << std::endl;
mwIndex* A0jc = mxGetJc(A0_ptr);
// std::cout << "A0jc = ";
// for (mwSize j=0; j <= A0colSize; j++)
// std::cout << A0jc[j] << " ";
// std::cout << std::endl;
mwIndex* A0ir = mxGetIr(A0_ptr);
// std::cout << "A0ir = ";
// for (mwSize i=0; i < A0nnz; i++)
// std::cout << A0ir[i] << " ";
// std::cout << std::endl;
double* A0pr = mxGetPr(A0_ptr);
// std::cout << "A0pr = ";
// for (mwSize i=0; i < A0nnz; i++)
// std::cout << A0pr[i] << " ";
// std::cout << std::endl;
/* reading the sparse mex matrix c0 --- a row vector */
/* vector c0: Mex */
const mxArray* c0_ptr = prhs[1];
if (mxIsSparse(c0_ptr) == 0) {
mexErrMsgTxt("c0 must be sparse.");
}
mwSize c0colSize = mxGetN(c0_ptr);
// std::cout << "c0colSize = " << c0colSize << std::endl;
if (c0colSize <= 1) {
mexErrMsgTxt("c0 must be a row vector.");
}
mwSize c0rowSize = mxGetM(c0_ptr); // = 1
// std::cout << "c0rowSize = " << c0rowSize << std::endl;
if (c0rowSize > 1) {
mexErrMsgTxt("c0 must be a row vector.");
}
mwIndex c0nnz = mxGetNzmax(c0_ptr);
// std::cout << "c0nnz = " << c0nnz << std::endl;
mwIndex* c0jc = mxGetJc(c0_ptr);
// std::cout << "c0jc = ";
// for (mwSize j=0; j <= c0colSize; j++)
// std::cout << c0jc[j] << " ";
// std::cout << std::endl;
mwIndex* c0ir = mxGetIr(c0_ptr);
// std::cout << "c0ir = ";
// for (mwSize i=0; i < c0nnz; i++)
// std::cout << c0ir[i] << " ";
// std::cout << std::endl;
double* c0pr = mxGetPr(c0_ptr);
// std::cout << "c0pr = ";
// for (mwSize i=0; i < c0nnz; i++)
// std::cout << c0pr[i] << " ";
// std::cout << std::endl;
/* reading the dense mex vector K0s */
const mxArray* K0s_ptr = prhs[2];
if (mxIsSparse(K0s_ptr) == 1) {
mexErrMsgTxt("K0s must be a dense column vector.");
}
mwSize K0colSize = mxGetN(K0s_ptr);
if (K0colSize > 1) {
mexErrMsgTxt("K0s must be a column vector.");
}
mwSize K0sSize = mxGetM(K0s_ptr);
double* K0spr = mxGetPr(K0s_ptr);
// std::cout << "K0spr = ";
// for (mwSize k0=0; k0 < K0sSize; k0++)
// std::cout << K0spr[k0] << " ";
// std::cout << std::endl;
/* reading the dense mex vector K1s */
const mxArray* K1s_ptr = prhs[3];
if (mxIsSparse(K1s_ptr) == 1) {
mexErrMsgTxt("K1s must be a dense column vector.");
}
mwSize K1colSize = mxGetN(K1s_ptr);
if (K1colSize > 1) {
mexErrMsgTxt("K1s must be a column vector.");
}
mwSize K1sSize = mxGetM(K1s_ptr);
double* K1spr = mxGetPr(K1s_ptr);
// std::cout << "K1spr = ";
// for (mwSize k1=0; k1 < K1sSize; k1++)
// std::cout << K1spr[k1] << " ";
// std::cout << std::endl;
/* Constructing the sparse mex matrix A1 */
/* the column size of A1 be constructed
= the column size of c1 to be constructed */
mwSize A1colSize = 0;
for (mwSize k1 = 0; k1 < K1sSize; k1++)
A1colSize += (mwSize)(K1spr[k1]*K1spr[k1]);
// std::cout << "A1colSize = " << A1colSize << std::endl;
/* the row size of A1 be constructed */
mwSize A1rowSize = A0rowSize;
mwIndex A1nnz = A0nnz;
plhs[0] = mxCreateSparse(A1rowSize,A1colSize,A1nnz,mxREAL);
mwIndex* A1jc = mxGetJc(plhs[0]);
mwIndex* A1ir = mxGetIr(plhs[0]);
double* A1pr = mxGetPr(plhs[0]);
mwSize c1colSize = A1colSize;
mwSize c1rowSize = c0rowSize;
mwIndex c1nnz = c0nnz;
plhs[1] = mxCreateSparse(c1rowSize,c1colSize,c1nnz,mxREAL);
mwIndex* c1jc = mxGetJc(plhs[1]);
mwIndex* c1ir = mxGetIr(plhs[1]);
double* c1pr = mxGetPr(plhs[1]);
int k1 = -1;
int topNDblks = 0;
int bottomNDblks = 0;
mwSize A0colPt = 0;
mwSize A1colPt = 0;
A1jc[A1colPt] = 0;
c1jc[A1colPt] = 0;
for (mwSize k0 = 0; k0 < K0sSize; k0++) {
bottomNDblks -= (int) K0spr[k0];
if (bottomNDblks < 0) {
k1++;
topNDblks = 0;
bottomNDblks = (int) (K1spr[k1] - K0spr[k0]);
}
else {
topNDblks += (int) K0spr[k0-1];
}
// std::cout << " k0 = " << k0 << " topNDblks = " << topNDblks << " bottomNDblks = " << bottomNDblks << std::endl;
for (mwSize j0 = 0; (int) j0 < K0spr[k0]; j0++) {
if (topNDblks > 0) {
for (mwSize k1 = 0; (int) k1 < topNDblks; k1++) {
A1jc[A1colPt+1] = A1jc[A1colPt];
c1jc[A1colPt+1] = c1jc[A1colPt];
A1colPt++;
}
}
for (mwSize i0 = 0; i0 < K0spr[k0]; i0++) {
A1jc[A1colPt+1] = A0jc[A0colPt+1];
c1jc[A1colPt+1] = c0jc[A0colPt+1];
A1colPt++;
A0colPt++;
}
if (bottomNDblks > 0) {
for (mwSize k1 = 0; (int) k1 < bottomNDblks; k1++) {
A1jc[A1colPt+1] = A1jc[A1colPt];
c1jc[A1colPt+1] = c1jc[A1colPt];
A1colPt++;
}
}
}
}
// std::cout << "A1jc = ";
// for (mwSize k1 = 0; k1 <= A1colSize; k1++)
// std::cout << A1jc[k1] << " ";
// std::cout << std::endl;
/* A1ir = A0ir and A1pr = A0pr */
for (mwSize p=0; p < A0nnz; p++) {
A1ir[p] = A0ir[p];
A1pr[p] = A0pr[p];
}
/* c1ir = c0ir and c1pr = c0pr */
for (mwSize p=0; p < c0nnz; p++) {
c1ir[p] = c0ir[p];
c1pr[p] = c0pr[p];
}
return;
}
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